APA (7th ed.) Citation

McKnight, L. W., Lehr, W., & Clark, D. D. (2001). Internet telephony. The MIT Press.

Chicago Style (17th ed.) Citation

McKnight, Lee W., William Lehr, and David D. Clark. Internet Telephony. Cambridge: The MIT Press, 2001.

MLA (9th ed.) Citation

McKnight, Lee W., et al. Internet Telephony. The MIT Press, 2001.